Firing Guns in Outer Space
At the end, we find out Ballard is the man on the inside (the black guy that was promoted after the former police captain was killed). He goes out in a space suit to get O'Niel, who's also outside in a space suit taking care of the two guys who came in on the ship.
Now, Ballard fires his shotgun several times at O'Niel. First, wouldn't that be pretty difficult to do while wearing a space suit? More importantly, can a gun even be fired in space, and if yes, can it be fired the same way it is on earth (or a similar atmosphere)?
Wouldn't it either not shoot, or the bullet wouldn't travel the way it does normally?
I don't know the answer, asking in all seriousness.
In the film, Ballard is able to shoot his gun despite wearing the bulky space suit, and the bullets travel at the same velocity and same direction they would as on earth.